Abstract

ROBLES AGUIRRE, Francisco Abelardo  and  LARA GALINDO, Wendy Fabiola. Lexical information interference in phonemic recognition during a phonological decision task. rev.latinoam.psicol. [online]. 2015, vol.47, n.3, pp.147-155. ISSN 0120-0534.  https://doi.org/10.1016Zj.rlp.2015.06.002.

Experiments using event-related potentials during phonological decision (PD) and lexical decision (LD) tasks have suggested that auditory language processing occurs in a serial fashion, with late interactions amongst the phonological, syntactic and semantic modules. This paper sought to assess the existence of interference between phonological and semantic processing during LD and PD in nominal phrases, by using a definite article to match a noun. In order to examine this, 180 auditory stimuli were presented to a group of participants, and they were asked to perform a LD and a PD task. Sixty auditory stimuli included a noun that generated a pseudo-word (PSP1), and 60 others included a misplaced syllable within the noun so as to generate another type of pseudo-word (PSP2). Ten adult Spanish speakers without any neurological or psychiatric disorders volunteered to take part in the experiment. Participants were found to make more mistakes when identifying PSP1 than PSP2 during the LD task. There were no significant differences in the N400 component during LD. As for the PD task, it was found that N100 increased in amplitude when words were presented. These findings go to show that lexical information interferes with the phonological processing phase, and questions the serial model of language processing.

Keywords : Lexical decision; Phonological decision; N100; N400.

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